k8s-sig-cluster-lifecycleawskubesprayhigh-availabilityansiblekubernetes-clustergcekubernetesbare-metal
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32 lines
1.5 KiB
32 lines
1.5 KiB
---
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# NOTE: The ampersand hell in this block is needed because docker-inspect uses go templates,
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# which uses double ampersands as delimiters, just like Jinja does. If you want to understand
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# the template, just replace all instances of {{ `{{` }} with {{ and {{ '}}' }} with }}.
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# It will output something like the following:
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# nginx:1.15,gcr.io/google-containers/kube-proxy:v1.14.1,gcr.io/google-containers/kube-proxy@sha256:44af2833c6cbd9a7fc2e9d2f5244a39dfd2e31ad91bf9d4b7d810678db738ee9,gcr.io/google-containers/kube-apiserver:v1.14.1,etc...
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- name: check_pull_required | Generate a list of information about the images on a node
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shell: "{{ image_info_command }}"
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delegate_to: "{{ download_delegate if download_run_once or inventory_hostname }}"
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no_log: true
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register: docker_images
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failed_when: false
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changed_when: false
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check_mode: no
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become: "{{ not download_localhost }}"
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when: not download_always_pull
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- name: check_pull_required | Set pull_required if the desired image is not yet loaded
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set_fact:
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pull_required: >-
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{%- if image_reponame in docker_images.stdout.split(',') %}false{%- else -%}true{%- endif -%}
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when: not download_always_pull
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- name: check_pull_required | Check that the local digest sha256 corresponds to the given image tag
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assert:
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that: "{{ download.repo }}:{{ download.tag }} in docker_images.stdout.split(',')"
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when:
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- not download_always_pull
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- not pull_required
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- pull_by_digest
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tags:
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- asserts
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